Pilbara Pin (Eurysticta coolawanyah)

The Pilbara Pin (Eurysticta coolawanyah) is a damselfly species of the family Isostictidae, which contains 15 species in Australia.

The identification key to the family Isostictidae consists of 22 couplets, 6 of which are pertinent to Eurysticta coolawanyah. Click on the numbers on the right to display the corresponding couplets. Or click on the ALLin1 button to see all the relevant couplets together in a single, scrollable window.

#	Family	Species	Couplet No.
	Isostictidae	Pilbara Pin (Eurysticta coolawanyah)	Isostictidae: Key couplet 1 of 22 ● CuP one or two cells long, occasionally none a ↑ Isostictidae: Key couplet 3 of 22 ● Superior anal appendages longer than inferiors b ↑ Isostictidae: Key couplet 5 of 22 ● Ac in hindwing proximal to level of Ax1 b ↑ Isostictidae: Key couplet 6 of 22 ○ Hindwing shorter than 20 mm ⇒ genus: Eurysticta b ↑ Isostictidae: Key couplet 7 of 22 ● Front of synthorax either entirely pale (in many females), or with dark band on either side of dorsal carina, plus shorter, narrow, upright stripe half-way from dorsal carina to mesopleural suture ⇒ species: Pilbara Pin (Eurysticta coolawanyah) a ↑ Isostictidae: Key couplet 11 of 22 ● CuP one cell long in forewing, two cells long in hindwing ⇒ genus: Eurysticta a ↑
1			Isostictidae: Key couplet 1 of 22 ● CuP one or two cells long, occasionally none a ↑ b ↓ ● CuP three or more cells long
2		Male only	Isostictidae: Key couplet 3 of 22 ● Superior anal appendages shorter than inferiors ⇒ genus: Rhadinosticta a ↑ b ↓ ● Superior anal appendages longer than inferiors
3		Male only	Isostictidae: Key couplet 5 of 22 ● Ac in hindwing at or distal to level of Ax1 ⇒ species: Slender Wiretail (Oristicta filicicola) a ↑ b ↓ ● Ac in hindwing proximal to level of Ax1
4			Isostictidae: Key couplet 6 of 22 ○ Hindwing longer than 20 mm ⇒ species: Large Wiretail (Labidiosticta vallisi) a ↑ b ↓ ○ Hindwing shorter than 20 mm ⇒ genus: Eurysticta
5			Isostictidae: Key couplet 7 of 22 ● Front of synthorax either entirely pale (in many females), or with dark band on either side of dorsal carina, plus shorter, narrow, upright stripe half-way from dorsal carina to mesopleural suture ⇒ species: Pilbara Pin (Eurysticta coolawanyah) a ↑ b ↓ ● Front of synthorax bearing some bronze-green markings, sometimes substantially bronze ● No upright stripe half-way from dorsal carina to mesopleural suture
6			Isostictidae: Key couplet 11 of 22 ● CuP one cell long in forewing, two cells long in hindwing ⇒ genus: Eurysticta a ↑ b ↓ ○ CuP one cell long in forewing and hindwing